21560+7404 UC 4601AC

 
 
21h 55m 59.28s +74 03' 58.1" P.A. 303.00 sep 53.1 mag 13.70,16.50
 
 
Coord 2000
21560+7404
Discov num
UC 4601
Comp
AC
Coord arcsec 2000
21 55 59.28 +74 03 58.1
Date first
1999
Date last
2015
Obs
4
Pa first
303
Pa last
303
P.A. Now (θ)
303°
Sep first
53.0
Sep last
53.1
Sep. Now (ρ)
53.1"
Mag pri
13.70
Mag sec
16.50
delta mag (ΔM)
2.8
Spectral class
Pri motion ra
+009
Sec motion ra
-001
Pri motion dec
+058
Sec motion dec
+063
Notes
V (Proper motion indicates physical)
rPM=0.177 (< 0.3, Physical double)
This double is physical.
 
 
21560+7404 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 55 59 +74 03 58 UC 4601 AB 2015 4 29 32.1 13.70 16.40 2.70
Show 21 55 59 +74 03 58 UC 4601 AC 2015 4 303 53.1 13.70 16.50 2.80 <===
Show 21 56 03 +74 04 26 UC 4601 BD 2015 4 237 43.9 16.40 14.70 1.70
Show 21 55 49 +74 04 27 UC 4601 CD 2015 4 137 33.9 16.50 14.70 1.80
Quadruple system
4 visible stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
302.9
Precise sep
53.061
Constellation
Hydra
Gaia DR2
2279226036026361728
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21560+7404 UC 4601 AC 2000 2 303 52.7 13.70 16.50 V 215559.28+740358.1
21560+7404 UC 4601 AC 2003 2 303 52.8 13.70 16.50 V 215559.28+740358.1
21560+7404 UC 4601 AC 2015 3 303 53.1 13.70 16.50 V 215559.28+740358.1

If you need more information about this double, apply for a data request form to the WDS.